DE1667252C - Rotary flow vortex for mass and heat exchange between solid or liquid particles and gases - Google Patents

Description

wall are inserted and the outwardly protruding part serves as a cooling flag will normally always use the same type of roughness. Ia the one shown Exemplary embodiment are two different types of roughness in one section only for the sake of simplicity shown. The number of individual roughnesses between the respective rows of nozzles is choose according to the requirements of the turbulence required in each case.

By controlling the gas supply to the individual rows of nozzles, the particles are then activated the next ring below, so initially between the rows of nozzles 34 to 36 and 37 to 39, then between the rows of nozzles 37 to 39 and 40 to 42 and finally between 40 to 42 and 43 to 45 passed on. After switching off the gas supply for the bottom row of nozzles 43 to 45, the particles are discharged via the outlet 29 into a bunker. The carrier medium, which has been cleaned of particles, leaves the vortex chamber via outlet 30.

The application of the roughness described is not limited to reaction vessels which the particles to be treated have an axial

ίο the inlet pipe. They are much more Applicable to all facilities in which free-floating, rotating particle rings are generated. The particles themselves can also be produced in other ways, for example through the nozzles themselves or via a tangible

IS tial inlet are fed.

1 sheet of drawings

Claims (2)

It has been shown that these rotating claims: · Particle rings have a high density and are not always sufficient with the supplied reaction 1. Rotary flow vortex come into contact with fabric and war partners. Does that happen especially between solid or liquid particles? in chemical reactions as they occur, for. B. represents the combustion and gases, consisting of a rotationally symmetrical combustion. If, for example, a moist tric vortex chamber with a lower or wet coal dust is supplied, the coaxial elements projecting into these burn the coal particles in the outer area of the smaller diameter for together with individual rings, but the combustion inside the carrier gas to be supplied or liquid part- io of the rings is quite incomplete,
surfaces as well as with tangentials and the inlet For this reason, means have been sought obliquely oppositely directed auxiliary gas inlets to loosen up the particle rings and in their the sidewalls of the upper region of the we- expansion both axially and radially belkammer to enlarge a gas outlet on the top direction. Are according to the invention the vortex chamber and a Gutauslaß in 1.5 therefore between the individual rows of the tangentia area the bottom as well as on the side walls len inlets bead-like roughness on the vortex Vortex chamber below the inlet chamber inner jacket parallel to the vortex chamber dung arranged, several herons arranged tangentia-axis. ler inlets for at least one of the reaction- These roughness can in the simplest case partner according to patent 1 542445, thereby ao consist of weld beads, but it can also characterized that between the individual appropriately profiled strips from a constant Rows of tangential inlets (31 to 45) are attached to the material. Because of this roughened shape Roughness (46 to 70) on the surface results in that the diameter of the partial belly chamber inner jacket Enlarged parallel to the vortex rings and the gas exchange in the Rinkkammerachse are arranged. 35 gene is improved. So in principle it is necessary- 2. Rotary flow vortex according to claim 1, Hch, the boundary layer under the particles thereby characterized in that the bead-shaped ßen, so that the mass and heat exchange verbes-roughness from flat profile pieces (48, 49) is sert. The turbulence of the flow can not exist, which are improved in the milling of the eddy by the fact that the roughness chamber jacket are inserted in such a way that 30 th are very sharp. By a part of the flat profile pieces as a cooling vane after the turbulence of the gas flow occurs survives outside. Fluctuations in speed cause a constant change in the relative speed of the solid or liquid particles to the gas particles in the 35 ring, so that there are always new ones at each particle Brush past gas particles. But it is also possible that the bead-shaped The main patent relates to a Drehströmungswirb- roughness consisting of flat profile pieces, which in ler for mass and heat exchange between solid milled recesses of the vortex chamber jacket such one or liquid particles and gases. The 40 is pushed so that a part of the flat profile pieces of rotary flow vortex protrudes outwards from a rotationally symmetrical cooling vane,
see vortex chamber with a in the lower area In the drawing is a schematic execution shown in this projecting coaxial inlet smaller approximately example according to the invention. F i g shows the diameter to be supplied together with carrier gas. 1 shows a longitudinal section through an escaping solid or liquid particle as well as with elongated vortex chamber and FIG. 2 shows a cross section tiale and the inlet diagonally opposite to the inlet according to the section line H-II.
Auxiliary gas inlets on the side walls of the upper vortex chamber 1 has a coaxial inlet Area of the vortex chamber, a gas outlet on tube 2 for the supplied with a carrier gas the top of the vortex chamber and a good-treating solid or liquid particle. outlet in the area of the floor. There are 3 of the inlet pipe 2 on the 50 above the mouth Sidewalls of the vortex chamber below the inlet the vortex chamber from a rotary flow vortex mouth several rows of tangential inlets ler 4 with corresponding inclined tangential nozzles, for at least one of the reactants, of which only the two nozzles 6 and 7 are arranged here net. 'are drawn. In this rotary flow vortex 4 In such a vortex chamber, the particles supplied by the carrier gas are therefore the 55 particles to be treated are fed axially from below and deposited in the actual reaction zone and then initially guided in a conventional rotating container 5. Between the individual nozzle vortex turbulence with the tangential and the inlet hen the freely floating rotating obliquely are now formed opposing auxiliary gas inlets lead off particle rings. The upper one - not shown here, like the one from the Austrian 60 - particle ring is formed between the see patent specification 239 769, the Swiss auxiliary gas inlets 31, 32, 33 and 34, 35, 36. Zwi patent specification 382 716 and the French patent- see these two rows of auxiliary gas inlets 1 096 283 is known. Below the coin, as in particular from FIG. 2 can be seen. The roughness 46 to 51 from the upper bulge-shaped roughness collects at the inlet, Partly separated particles then float freely 65. The roughnesses 46 and 47 as well as 50 rotating rings between the individual rod and 51 approximately semicircular profile while tially arranged inlets through which, for. B. in the case of the roughnesses 48 and 49 from flat profile pieces Drying, hot gases are introduced. exist, which are milled in the swirl chamber